Checkpoint new GLSL compiler back-end to produce fp/vp-style assembly instructions.

1 files changed, 115 insertions, 0 deletions

diff --git a/src/mesa/shader/slang/slang_ir.h b/src/mesa/shader/slang/slang_ir.h
new file mode 100644
index 00000000000..3c583365d8d
--- /dev/null
+++ b/src/mesa/shader/slang/slang_ir.h
@@ -0,0 +1,115 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  6.5.3
+ *
+ * Copyright (C) 2005-2007  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file slang_ir.h
+ * Mesa GLSL Itermediate Representation tree types and constants.
+ * \author Brian Paul
+ */
+
+
+#ifndef SLANG_IR_H
+#define SLANG_IR_H
+
+
+#include "imports.h"
+#include "slang_compile.h"
+#include "mtypes.h"
+
+
+/**
+ * Intermediate Representation opcode
+ */
+typedef enum
+{
+   IR_NOP = 0,
+   IR_SEQ,
+   IR_LABEL,   /* target of a jump or cjump */
+   IR_JUMP,    /* unconditional jump */
+   IR_CJUMP,   /* conditional jump */
+   IR_CALL,
+   IR_MOVE,
+   IR_ADD,
+   IR_SUB,
+   IR_MUL,
+   IR_DIV,
+   IR_DOT4,
+   IR_DOT3,
+   IR_CROSS,
+   IR_MIN,
+   IR_MAX,
+   IR_SEQUAL,
+   IR_SNEQUAL,
+   IR_SGE,
+   IR_SGT,
+   IR_POW,
+   IR_EXP,
+   IR_EXP2,
+   IR_LOG2,
+   IR_RSQ,
+   IR_RCP,
+   IR_FLOOR,
+   IR_FRAC,
+   IR_ABS,
+   IR_SIN,
+   IR_COS,
+   IR_LESS,
+   IR_NOT,
+   IR_VAR,
+   IR_VAR_DECL,
+   IR_FLOAT,
+   IR_FIELD,
+   IR_I_TO_F
+} slang_ir_opcode;
+
+
+/**
+ * Describes where data storage is allocated.
+ */
+typedef struct
+{
+   enum register_file File;  /**< PROGRAM_TEMPORARY, PROGRAM_INPUT, etc */
+   GLint Index;  /**< -1 means unallocated */
+   GLint Size;  /**< number of floats */
+} slang_ir_storage;
+
+
+/**
+ * Intermediate Representation (IR) tree node
+ */
+typedef struct slang_ir_node_
+{
+   slang_ir_opcode Opcode;
+   struct slang_ir_node_ *Children[2];
+   const char *Comment;
+   const char *Target;
+   GLuint Swizzle;
+   GLuint Writemask;  /**< If Op == IR_MOVE */
+   GLfloat Value[4];    /**< If Op == IR_FLOAT */
+   slang_variable *Var;
+   slang_ir_storage *Store;
+} slang_ir_node;
+
+
+#endif /* SLANG_IR_H */